/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:08:35,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:08:35,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:08:35,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:08:35,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:08:35,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:08:35,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:08:35,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:08:35,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:08:35,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:08:35,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:08:35,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:08:35,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:08:35,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:08:35,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:08:35,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:08:35,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:08:35,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:08:35,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:08:35,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:08:35,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:08:35,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:08:35,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:08:35,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:08:35,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:08:35,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:08:35,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:08:35,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:08:35,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:08:35,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:08:35,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:08:35,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:08:35,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:08:35,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:08:35,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:08:35,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:08:35,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:08:35,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:08:35,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:08:35,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:08:35,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:08:35,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:08:36,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:08:36,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:08:36,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:08:36,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:08:36,054 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:08:36,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:08:36,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:08:36,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:08:36,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:08:36,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:08:36,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:08:36,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:08:36,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:08:36,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:08:36,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:08:36,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:08:36,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:08:36,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:08:36,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:08:36,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:08:36,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:08:36,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:08:36,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:08:36,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:08:36,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:08:36,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:08:36,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:08:36,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:08:36,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:08:36,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:08:36,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:08:36,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:08:36,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:08:36,440 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:08:36,441 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:08:36,442 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label04.c [2020-10-14 22:08:36,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d89291061/e609437be7c741e1a07774b336e0fbc0/FLAG2ce8b3c2f [2020-10-14 22:08:37,296 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:08:37,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label04.c [2020-10-14 22:08:37,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d89291061/e609437be7c741e1a07774b336e0fbc0/FLAG2ce8b3c2f [2020-10-14 22:08:37,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d89291061/e609437be7c741e1a07774b336e0fbc0 [2020-10-14 22:08:37,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:08:37,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:08:37,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:08:37,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:08:37,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:08:37,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:37" (1/1) ... [2020-10-14 22:08:37,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1585d1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:37, skipping insertion in model container [2020-10-14 22:08:37,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:37" (1/1) ... [2020-10-14 22:08:37,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:08:37,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:08:38,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:08:38,979 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:08:39,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:08:39,314 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:08:39,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39 WrapperNode [2020-10-14 22:08:39,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:08:39,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:08:39,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:08:39,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:08:39,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... [2020-10-14 22:08:39,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:08:39,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:08:39,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:08:39,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:08:39,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:08:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:08:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:08:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:08:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:08:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:08:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:08:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:08:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:08:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:08:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:08:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:08:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:08:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:08:42,493 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:08:42,493 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:08:42,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:42 BoogieIcfgContainer [2020-10-14 22:08:42,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:08:42,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:08:42,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:08:42,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:08:42,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:08:37" (1/3) ... [2020-10-14 22:08:42,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571ce3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:42, skipping insertion in model container [2020-10-14 22:08:42,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:39" (2/3) ... [2020-10-14 22:08:42,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571ce3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:42, skipping insertion in model container [2020-10-14 22:08:42,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:42" (3/3) ... [2020-10-14 22:08:42,515 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label04.c [2020-10-14 22:08:42,529 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:08:42,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:08:42,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:08:42,587 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:08:42,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:08:42,588 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:08:42,588 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:08:42,588 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:08:42,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:08:42,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:08:42,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:08:42,618 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:08:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 22:08:42,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:42,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:08:42,630 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:42,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1941873075, now seen corresponding path program 1 times [2020-10-14 22:08:42,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:42,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788134170] [2020-10-14 22:08:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:42,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:43,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:43,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:08:43,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-14 22:08:43,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:43,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:08:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:08:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:08:43,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:08:43,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:43,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:43,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:43,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:43,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:08:43,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:43,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:08:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:08:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:08:43,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788134170] [2020-10-14 22:08:43,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:08:43,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:08:43,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857533141] [2020-10-14 22:08:43,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:08:43,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:08:43,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:08:43,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:08:43,443 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:08:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:08:47,502 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 22:08:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:08:47,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-14 22:08:47,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:08:47,540 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:08:47,541 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:08:47,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:08:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:08:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 22:08:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 22:08:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 22:08:47,708 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 34 [2020-10-14 22:08:47,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:08:47,709 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 22:08:47,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:08:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 22:08:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 22:08:47,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:47,717 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:08:47,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:08:47,718 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:47,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1512942752, now seen corresponding path program 1 times [2020-10-14 22:08:47,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:47,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422598171] [2020-10-14 22:08:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:47,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:48,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:48,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:48,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 22:08:48,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:08:48,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-14 22:08:48,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:48,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:08:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:08:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:08:48,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:08:48,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:48,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:48,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:48,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:48,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:08:48,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:48,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:08:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:08:48,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:08:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:49,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:49,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:08:49,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:08:49,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:49,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:49,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:08:49,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:08:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:08:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 22:08:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:08:49,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422598171] [2020-10-14 22:08:49,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:08:49,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:08:49,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145848566] [2020-10-14 22:08:49,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:08:49,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:08:49,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:08:49,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:08:49,279 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-14 22:08:53,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:08:53,882 INFO L93 Difference]: Finished difference Result 2088 states and 3100 transitions. [2020-10-14 22:08:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:08:53,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 22:08:53,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:08:53,893 INFO L225 Difference]: With dead ends: 2088 [2020-10-14 22:08:53,893 INFO L226 Difference]: Without dead ends: 1402 [2020-10-14 22:08:53,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:08:53,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-14 22:08:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1378. [2020-10-14 22:08:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-14 22:08:53,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1812 transitions. [2020-10-14 22:08:53,959 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1812 transitions. Word has length 110 [2020-10-14 22:08:53,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:08:53,960 INFO L479 AbstractCegarLoop]: Abstraction has 1378 states and 1812 transitions. [2020-10-14 22:08:53,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:08:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1812 transitions. [2020-10-14 22:08:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-14 22:08:53,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:08:53,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:08:53,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:08:53,966 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:08:53,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:08:53,967 INFO L82 PathProgramCache]: Analyzing trace with hash -744365296, now seen corresponding path program 1 times [2020-10-14 22:08:53,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:08:53,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644699696] [2020-10-14 22:08:53,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:08:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:54,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:54,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:55,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:55,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:56,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:56,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-14 22:08:56,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:08:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2784 [2020-10-14 22:08:56,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:56,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:08:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:08:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:08:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:08:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:08:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:56,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:56,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:56,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:08:56,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:56,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:08:56,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:56,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:08:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:08:56,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:08:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:57,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:57,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:57,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:08:57,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:08:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 22:08:57,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:57,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:08:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:08:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:08:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:08:57,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:08:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:08:57,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:08:57,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:08:57,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:08:57,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:08:57,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 22:08:57,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:08:57,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:08:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:08:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:08:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:08:57,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:08:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:08:57,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644699696] [2020-10-14 22:08:57,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:08:57,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:08:57,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72967515] [2020-10-14 22:08:57,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:08:57,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:08:57,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:08:57,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:08:57,481 INFO L87 Difference]: Start difference. First operand 1378 states and 1812 transitions. Second operand 7 states. [2020-10-14 22:09:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:01,844 INFO L93 Difference]: Finished difference Result 3483 states and 4768 transitions. [2020-10-14 22:09:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:09:01,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-14 22:09:01,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:01,863 INFO L225 Difference]: With dead ends: 3483 [2020-10-14 22:09:01,864 INFO L226 Difference]: Without dead ends: 2111 [2020-10-14 22:09:01,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:09:01,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-10-14 22:09:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2082. [2020-10-14 22:09:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2020-10-14 22:09:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2687 transitions. [2020-10-14 22:09:01,943 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2687 transitions. Word has length 197 [2020-10-14 22:09:01,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:01,944 INFO L479 AbstractCegarLoop]: Abstraction has 2082 states and 2687 transitions. [2020-10-14 22:09:01,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2687 transitions. [2020-10-14 22:09:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-14 22:09:01,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:01,950 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:01,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:09:01,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:01,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:01,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1904210891, now seen corresponding path program 1 times [2020-10-14 22:09:01,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:01,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043965515] [2020-10-14 22:09:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:02,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:02,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:02,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:04,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:04,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-14 22:09:04,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:09:04,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2684 [2020-10-14 22:09:04,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:04,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:04,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:09:04,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-14 22:09:04,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:04,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:04,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:04,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:04,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:09:04,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:04,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:04,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:05,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:05,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:09:05,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:05,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 22:09:05,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:05,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:09:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:09:05,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:09:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:05,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:05,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:05,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:09:05,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-14 22:09:05,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:05,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:09:05,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:09:06,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043965515] [2020-10-14 22:09:06,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:06,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:06,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993952529] [2020-10-14 22:09:06,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:06,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:06,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:06,007 INFO L87 Difference]: Start difference. First operand 2082 states and 2687 transitions. Second operand 7 states. [2020-10-14 22:09:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:13,021 INFO L93 Difference]: Finished difference Result 5552 states and 7130 transitions. [2020-10-14 22:09:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:09:13,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-14 22:09:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:13,051 INFO L225 Difference]: With dead ends: 5552 [2020-10-14 22:09:13,052 INFO L226 Difference]: Without dead ends: 3476 [2020-10-14 22:09:13,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:09:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2020-10-14 22:09:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3121. [2020-10-14 22:09:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3121 states. [2020-10-14 22:09:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3974 transitions. [2020-10-14 22:09:13,174 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3974 transitions. Word has length 260 [2020-10-14 22:09:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:13,176 INFO L479 AbstractCegarLoop]: Abstraction has 3121 states and 3974 transitions. [2020-10-14 22:09:13,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3974 transitions. [2020-10-14 22:09:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-10-14 22:09:13,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:13,194 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:13,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:09:13,195 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:13,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1065434925, now seen corresponding path program 1 times [2020-10-14 22:09:13,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:13,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376859885] [2020-10-14 22:09:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:13,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:13,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:15,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:15,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:15,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:18,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:18,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 478 [2020-10-14 22:09:18,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 22:09:18,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:09:18,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:18,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:09:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:09:18,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:18,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:18,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:18,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:18,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:18,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:09:18,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:18,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:18,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:18,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:18,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:18,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:18,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:18,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:09:18,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:18,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:09:18,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:18,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:18,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:18,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:09:18,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:18,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:09:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:18,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:18,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:19,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:09:19,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:19,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-10-14 22:09:19,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:19,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:09:19,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:09:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:09:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:19,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:19,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:19,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:19,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:19,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 22:09:19,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:19,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:19,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:19,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:09:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:19,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-14 22:09:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:19,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:19,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:19,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:09:19,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:19,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:09:19,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:19,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:09:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:19,986 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 292 proven. 172 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-10-14 22:09:19,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376859885] [2020-10-14 22:09:19,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:19,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:09:19,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874081224] [2020-10-14 22:09:19,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:09:19,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:19,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:09:19,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:09:19,989 INFO L87 Difference]: Start difference. First operand 3121 states and 3974 transitions. Second operand 8 states. [2020-10-14 22:09:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:25,209 INFO L93 Difference]: Finished difference Result 7322 states and 9515 transitions. [2020-10-14 22:09:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:09:25,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 462 [2020-10-14 22:09:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:25,228 INFO L225 Difference]: With dead ends: 7322 [2020-10-14 22:09:25,228 INFO L226 Difference]: Without dead ends: 3830 [2020-10-14 22:09:25,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:09:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2020-10-14 22:09:25,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3132. [2020-10-14 22:09:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3132 states. [2020-10-14 22:09:25,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 3363 transitions. [2020-10-14 22:09:25,325 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 3363 transitions. Word has length 462 [2020-10-14 22:09:25,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:25,326 INFO L479 AbstractCegarLoop]: Abstraction has 3132 states and 3363 transitions. [2020-10-14 22:09:25,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:09:25,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 3363 transitions. [2020-10-14 22:09:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2020-10-14 22:09:25,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:25,346 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:25,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:09:25,347 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:25,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:25,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1634769318, now seen corresponding path program 1 times [2020-10-14 22:09:25,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:25,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59673097] [2020-10-14 22:09:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:25,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:25,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:25,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:27,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:30,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:30,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 704 [2020-10-14 22:09:30,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:09:30,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 22:09:30,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:30,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-14 22:09:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 22:09:30,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:30,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:30,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:30,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:30,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:30,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:30,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:09:30,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:30,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:30,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:30,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:30,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:30,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:30,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:09:30,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:30,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:09:30,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:30,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:30,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:30,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:30,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:09:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:30,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:30,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:30,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:09:30,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:09:30,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:30,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:30,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:30,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:30,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:09:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:30,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:30,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:30,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:09:30,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:30,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:30,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:30,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:30,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:09:30,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:31,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:09:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:31,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:31,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:31,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:09:31,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:31,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 22:09:31,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:31,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:09:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:31,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:09:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:31,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:31,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:31,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:09:31,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:31,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 22:09:31,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:31,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:09:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:31,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 468 proven. 109 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-14 22:09:31,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59673097] [2020-10-14 22:09:31,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:31,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:09:31,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631666941] [2020-10-14 22:09:31,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:09:31,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:31,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:09:31,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:09:31,956 INFO L87 Difference]: Start difference. First operand 3132 states and 3363 transitions. Second operand 8 states. [2020-10-14 22:09:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:35,154 INFO L93 Difference]: Finished difference Result 8004 states and 8701 transitions. [2020-10-14 22:09:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:09:35,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 686 [2020-10-14 22:09:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:35,174 INFO L225 Difference]: With dead ends: 8004 [2020-10-14 22:09:35,174 INFO L226 Difference]: Without dead ends: 4878 [2020-10-14 22:09:35,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:09:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2020-10-14 22:09:35,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 4515. [2020-10-14 22:09:35,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4515 states. [2020-10-14 22:09:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4515 states to 4515 states and 4912 transitions. [2020-10-14 22:09:35,282 INFO L78 Accepts]: Start accepts. Automaton has 4515 states and 4912 transitions. Word has length 686 [2020-10-14 22:09:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:35,283 INFO L479 AbstractCegarLoop]: Abstraction has 4515 states and 4912 transitions. [2020-10-14 22:09:35,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:09:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4515 states and 4912 transitions. [2020-10-14 22:09:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2020-10-14 22:09:35,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:35,318 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:35,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:09:35,319 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2143217585, now seen corresponding path program 1 times [2020-10-14 22:09:35,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:35,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651519784] [2020-10-14 22:09:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:35,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:35,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:36,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:40,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 845 [2020-10-14 22:09:40,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:09:40,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-14 22:09:40,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:40,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:09:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:40,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:40,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:40,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:40,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:40,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:09:40,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:40,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:40,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:40,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:40,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:40,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:40,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:40,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:09:41,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 22:09:41,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:09:41,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:41,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:09:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:09:41,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:41,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:09:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:41,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:41,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:09:41,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:09:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:41,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 22:09:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:41,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:09:41,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:09:41,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:41,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:09:41,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:41,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:41,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2020-10-14 22:09:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:41,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:09:41,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:09:41,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:09:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 135 proven. 500 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2020-10-14 22:09:42,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651519784] [2020-10-14 22:09:42,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:42,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:42,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372939383] [2020-10-14 22:09:42,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:42,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:42,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:42,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:42,676 INFO L87 Difference]: Start difference. First operand 4515 states and 4912 transitions. Second operand 7 states. [2020-10-14 22:09:45,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:45,346 INFO L93 Difference]: Finished difference Result 9375 states and 10181 transitions. [2020-10-14 22:09:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:09:45,347 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 827 [2020-10-14 22:09:45,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:45,367 INFO L225 Difference]: With dead ends: 9375 [2020-10-14 22:09:45,367 INFO L226 Difference]: Without dead ends: 4866 [2020-10-14 22:09:45,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:09:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2020-10-14 22:09:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 4852. [2020-10-14 22:09:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4852 states. [2020-10-14 22:09:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 5255 transitions. [2020-10-14 22:09:45,474 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 5255 transitions. Word has length 827 [2020-10-14 22:09:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:45,475 INFO L479 AbstractCegarLoop]: Abstraction has 4852 states and 5255 transitions. [2020-10-14 22:09:45,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 5255 transitions. [2020-10-14 22:09:45,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2020-10-14 22:09:45,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:45,495 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:45,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:09:45,495 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:45,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1336738670, now seen corresponding path program 1 times [2020-10-14 22:09:45,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:45,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54172014] [2020-10-14 22:09:45,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:45,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:45,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:45,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:50,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:50,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:50,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 947 [2020-10-14 22:09:50,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:09:50,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 22:09:50,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:50,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:09:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:09:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:50,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:50,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:50,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:50,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:50,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:09:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:50,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:09:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:50,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:51,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:51,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:09:51,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 22:09:51,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:51,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:09:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:51,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 22:09:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:51,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:51,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:09:51,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:09:51,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:51,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:09:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:51,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:51,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-10-14 22:09:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:51,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:51,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:51,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:09:51,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:51,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:09:51,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:51,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:09:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:51,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-10-14 22:09:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:51,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:51,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:51,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:09:51,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:51,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:09:51,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:51,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:09:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:51,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:51,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2020-10-14 22:09:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:51,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:51,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:51,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:09:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:09:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1634 backedges. 275 proven. 510 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2020-10-14 22:09:52,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54172014] [2020-10-14 22:09:52,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:52,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:52,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497498100] [2020-10-14 22:09:52,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:52,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:52,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:52,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:52,069 INFO L87 Difference]: Start difference. First operand 4852 states and 5255 transitions. Second operand 7 states. [2020-10-14 22:09:55,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:55,289 INFO L93 Difference]: Finished difference Result 13493 states and 14825 transitions. [2020-10-14 22:09:55,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:09:55,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 927 [2020-10-14 22:09:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:55,318 INFO L225 Difference]: With dead ends: 13493 [2020-10-14 22:09:55,319 INFO L226 Difference]: Without dead ends: 8647 [2020-10-14 22:09:55,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:09:55,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8647 states. [2020-10-14 22:09:55,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8647 to 8292. [2020-10-14 22:09:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8292 states. [2020-10-14 22:09:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8292 states to 8292 states and 8971 transitions. [2020-10-14 22:09:55,493 INFO L78 Accepts]: Start accepts. Automaton has 8292 states and 8971 transitions. Word has length 927 [2020-10-14 22:09:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:55,494 INFO L479 AbstractCegarLoop]: Abstraction has 8292 states and 8971 transitions. [2020-10-14 22:09:55,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8292 states and 8971 transitions. [2020-10-14 22:09:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2020-10-14 22:09:55,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:55,526 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:55,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:09:55,527 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:55,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1575596400, now seen corresponding path program 1 times [2020-10-14 22:09:55,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:55,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429197568] [2020-10-14 22:09:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:55,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:55,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:58,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:58,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:00,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:00,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1203 [2020-10-14 22:10:00,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:10:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 22:10:00,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:00,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 732 [2020-10-14 22:10:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:10:00,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:00,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:00,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:00,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:00,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:00,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:00,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:00,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:00,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:00,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:00,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:10:00,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:00,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:00,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:00,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:10:01,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:10:01,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:10:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:01,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:10:01,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:10:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:01,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:01,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:10:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:01,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:10:01,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:10:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:01,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 22:10:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:10:01,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-14 22:10:01,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:10:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:02,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-14 22:10:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:02,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:02,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:02,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:02,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1066 [2020-10-14 22:10:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:02,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:02,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:10:02,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:10:02,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:02,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:10:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:02,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 975 proven. 154 refuted. 0 times theorem prover too weak. 1841 trivial. 0 not checked. [2020-10-14 22:10:03,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429197568] [2020-10-14 22:10:03,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:03,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:10:03,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295274815] [2020-10-14 22:10:03,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:10:03,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:03,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:10:03,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:10:03,901 INFO L87 Difference]: Start difference. First operand 8292 states and 8971 transitions. Second operand 8 states. [2020-10-14 22:10:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:08,172 INFO L93 Difference]: Finished difference Result 19646 states and 21372 transitions. [2020-10-14 22:10:08,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:10:08,173 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1179 [2020-10-14 22:10:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:08,207 INFO L225 Difference]: With dead ends: 19646 [2020-10-14 22:10:08,207 INFO L226 Difference]: Without dead ends: 11697 [2020-10-14 22:10:08,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:10:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11697 states. [2020-10-14 22:10:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11697 to 9658. [2020-10-14 22:10:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9658 states. [2020-10-14 22:10:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9658 states to 9658 states and 10553 transitions. [2020-10-14 22:10:08,406 INFO L78 Accepts]: Start accepts. Automaton has 9658 states and 10553 transitions. Word has length 1179 [2020-10-14 22:10:08,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:08,408 INFO L479 AbstractCegarLoop]: Abstraction has 9658 states and 10553 transitions. [2020-10-14 22:10:08,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:10:08,408 INFO L276 IsEmpty]: Start isEmpty. Operand 9658 states and 10553 transitions. [2020-10-14 22:10:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1200 [2020-10-14 22:10:08,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:08,434 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:08,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:10:08,435 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:08,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:08,435 INFO L82 PathProgramCache]: Analyzing trace with hash -254670386, now seen corresponding path program 1 times [2020-10-14 22:10:08,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:08,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605339175] [2020-10-14 22:10:08,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:08,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:09,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:09,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:09,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:13,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1223 [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:10:13,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:10:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:13,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:13,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:13,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:13,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:13,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:13,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:13,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:13,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:13,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:13,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:13,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:13,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:13,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:10:13,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:13,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:10:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:10:14,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:10:14,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:14,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:10:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:14,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:10:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:14,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:14,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:10:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:14,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:14,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:10:14,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:14,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:10:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:10:14,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:10:14,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:10:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:14,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 865 [2020-10-14 22:10:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:14,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:10:14,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:10:14,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:10:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:14,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:14,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 22:10:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:14,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:14,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:10:14,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:14,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:10:14,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:14,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:14,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:14,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:10:14,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:14,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3405 backedges. 399 proven. 712 refuted. 0 times theorem prover too weak. 2294 trivial. 0 not checked. [2020-10-14 22:10:15,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605339175] [2020-10-14 22:10:15,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:15,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:15,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73124437] [2020-10-14 22:10:15,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:15,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:15,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:15,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:15,702 INFO L87 Difference]: Start difference. First operand 9658 states and 10553 transitions. Second operand 7 states. [2020-10-14 22:10:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:19,011 INFO L93 Difference]: Finished difference Result 21024 states and 23134 transitions. [2020-10-14 22:10:19,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:10:19,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1199 [2020-10-14 22:10:19,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:19,045 INFO L225 Difference]: With dead ends: 21024 [2020-10-14 22:10:19,046 INFO L226 Difference]: Without dead ends: 11709 [2020-10-14 22:10:19,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:10:19,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11709 states. [2020-10-14 22:10:19,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11709 to 11020. [2020-10-14 22:10:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11020 states. [2020-10-14 22:10:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11020 states to 11020 states and 11979 transitions. [2020-10-14 22:10:19,336 INFO L78 Accepts]: Start accepts. Automaton has 11020 states and 11979 transitions. Word has length 1199 [2020-10-14 22:10:19,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:19,338 INFO L479 AbstractCegarLoop]: Abstraction has 11020 states and 11979 transitions. [2020-10-14 22:10:19,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand 11020 states and 11979 transitions. [2020-10-14 22:10:19,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1261 [2020-10-14 22:10:19,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:19,371 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:19,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:10:19,371 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:19,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:19,372 INFO L82 PathProgramCache]: Analyzing trace with hash 784239271, now seen corresponding path program 1 times [2020-10-14 22:10:19,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:19,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138385178] [2020-10-14 22:10:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:19,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:20,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:21,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1284 [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:24,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:10:24,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:10:24,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:24,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:24,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:24,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:24,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:24,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:24,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:24,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:24,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:24,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:24,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:24,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:24,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:24,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:10:24,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:24,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:10:24,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:24,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:24,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:24,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:24,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:10:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:24,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:24,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:24,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:24,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:10:24,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:24,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:10:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:25,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:10:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:25,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:10:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:25,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:10:25,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:25,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:10:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:25,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:25,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:25,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:25,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 926 [2020-10-14 22:10:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:25,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:25,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:25,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:10:25,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:10:25,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:25,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:10:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:25,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-14 22:10:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:25,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:25,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:10:25,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:25,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3502 backedges. 682 proven. 333 refuted. 0 times theorem prover too weak. 2487 trivial. 0 not checked. [2020-10-14 22:10:26,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138385178] [2020-10-14 22:10:26,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:26,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:26,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51349677] [2020-10-14 22:10:26,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:26,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:26,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:26,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:26,183 INFO L87 Difference]: Start difference. First operand 11020 states and 11979 transitions. Second operand 7 states. [2020-10-14 22:10:30,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:30,590 INFO L93 Difference]: Finished difference Result 26780 states and 29232 transitions. [2020-10-14 22:10:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:10:30,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1260 [2020-10-14 22:10:30,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:30,645 INFO L225 Difference]: With dead ends: 26780 [2020-10-14 22:10:30,645 INFO L226 Difference]: Without dead ends: 15760 [2020-10-14 22:10:30,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15760 states. [2020-10-14 22:10:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15760 to 15421. [2020-10-14 22:10:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15421 states. [2020-10-14 22:10:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15421 states to 15421 states and 16637 transitions. [2020-10-14 22:10:30,945 INFO L78 Accepts]: Start accepts. Automaton has 15421 states and 16637 transitions. Word has length 1260 [2020-10-14 22:10:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:30,947 INFO L479 AbstractCegarLoop]: Abstraction has 15421 states and 16637 transitions. [2020-10-14 22:10:30,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15421 states and 16637 transitions. [2020-10-14 22:10:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1316 [2020-10-14 22:10:30,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:30,987 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:30,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:10:30,987 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:30,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:30,988 INFO L82 PathProgramCache]: Analyzing trace with hash -952740347, now seen corresponding path program 1 times [2020-10-14 22:10:30,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:30,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318593435] [2020-10-14 22:10:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:31,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:31,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:31,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:31,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1341 [2020-10-14 22:10:36,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:10:36,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-14 22:10:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:10:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:36,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:36,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:36,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:10:36,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:10:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:10:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:36,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:10:36,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:10:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:36,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:10:36,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-14 22:10:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:10:36,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:10:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:10:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-14 22:10:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:10:36,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:10:36,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:10:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-14 22:10:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:10:36,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:10:36,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:10:36,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:37,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1202 [2020-10-14 22:10:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:37,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:37,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:10:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4198 backedges. 796 proven. 467 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked. [2020-10-14 22:10:37,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318593435] [2020-10-14 22:10:37,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:37,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:37,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821528338] [2020-10-14 22:10:37,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:37,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:37,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:37,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:37,824 INFO L87 Difference]: Start difference. First operand 15421 states and 16637 transitions. Second operand 7 states. [2020-10-14 22:10:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:41,617 INFO L93 Difference]: Finished difference Result 34232 states and 37241 transitions. [2020-10-14 22:10:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:10:41,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1315 [2020-10-14 22:10:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:41,663 INFO L225 Difference]: With dead ends: 34232 [2020-10-14 22:10:41,663 INFO L226 Difference]: Without dead ends: 18813 [2020-10-14 22:10:41,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18813 states. [2020-10-14 22:10:41,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18813 to 18468. [2020-10-14 22:10:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18468 states. [2020-10-14 22:10:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18468 states to 18468 states and 19922 transitions. [2020-10-14 22:10:41,972 INFO L78 Accepts]: Start accepts. Automaton has 18468 states and 19922 transitions. Word has length 1315 [2020-10-14 22:10:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:41,974 INFO L479 AbstractCegarLoop]: Abstraction has 18468 states and 19922 transitions. [2020-10-14 22:10:41,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 18468 states and 19922 transitions. [2020-10-14 22:10:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1466 [2020-10-14 22:10:42,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:42,038 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:42,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:10:42,039 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:42,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1225707228, now seen corresponding path program 1 times [2020-10-14 22:10:42,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:42,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018257822] [2020-10-14 22:10:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:42,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:43,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:47,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1489 [2020-10-14 22:10:47,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:10:47,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5206 [2020-10-14 22:10:47,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:47,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:47,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:47,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1194 [2020-10-14 22:10:47,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 262 [2020-10-14 22:10:47,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:47,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:47,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:47,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:47,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:47,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:47,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:10:47,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:10:47,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:47,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:47,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:47,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:10:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:47,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:47,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:47,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:47,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:10:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:47,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:48,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:48,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:48,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 22:10:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:48,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:48,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:48,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 22:10:48,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:48,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:10:48,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:48,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:48,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:48,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:48,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:48,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:48,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:10:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:48,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:48,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:10:48,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:48,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:10:48,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:48,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 22:10:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:48,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:48,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:10:48,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:48,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:10:48,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:48,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:48,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:48,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:10:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:48,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:48,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:48,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:10:48,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:10:48,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:48,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:10:48,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-14 22:10:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:48,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:48,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-14 22:10:48,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:48,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-14 22:10:48,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:48,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:48,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:48,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:48,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 260 [2020-10-14 22:10:48,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4326 backedges. 1397 proven. 2 refuted. 0 times theorem prover too weak. 2927 trivial. 0 not checked. [2020-10-14 22:10:50,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018257822] [2020-10-14 22:10:50,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:50,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:50,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107521563] [2020-10-14 22:10:50,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:50,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:50,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:50,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:50,323 INFO L87 Difference]: Start difference. First operand 18468 states and 19922 transitions. Second operand 7 states. [2020-10-14 22:10:53,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:53,677 INFO L93 Difference]: Finished difference Result 37971 states and 41010 transitions. [2020-10-14 22:10:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:10:53,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1465 [2020-10-14 22:10:53,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:53,720 INFO L225 Difference]: With dead ends: 37971 [2020-10-14 22:10:53,721 INFO L226 Difference]: Without dead ends: 17108 [2020-10-14 22:10:53,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:10:53,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17108 states. [2020-10-14 22:10:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17108 to 17080. [2020-10-14 22:10:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17080 states. [2020-10-14 22:10:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17080 states to 17080 states and 17958 transitions. [2020-10-14 22:10:53,993 INFO L78 Accepts]: Start accepts. Automaton has 17080 states and 17958 transitions. Word has length 1465 [2020-10-14 22:10:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:53,994 INFO L479 AbstractCegarLoop]: Abstraction has 17080 states and 17958 transitions. [2020-10-14 22:10:53,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:53,994 INFO L276 IsEmpty]: Start isEmpty. Operand 17080 states and 17958 transitions. [2020-10-14 22:10:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1956 [2020-10-14 22:10:54,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:54,166 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:54,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:10:54,167 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:54,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1761507562, now seen corresponding path program 1 times [2020-10-14 22:10:54,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:54,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835193337] [2020-10-14 22:10:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:55,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:55,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:55,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1983 [2020-10-14 22:10:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-14 22:10:59,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1192 [2020-10-14 22:10:59,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:10:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:59,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:59,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:10:59,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:10:59,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:10:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:10:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:59,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:59,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:59,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:11:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:00,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-14 22:11:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:11:00,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 22:11:00,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 22:11:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-14 22:11:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:00,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 22:11:00,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:11:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1453 [2020-10-14 22:11:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:00,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:00,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:11:00,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:00,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:00,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1565 [2020-10-14 22:11:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:00,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:01,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:01,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:01,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:01,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1780 [2020-10-14 22:11:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:01,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:11:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:01,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 7030 backedges. 1521 proven. 469 refuted. 0 times theorem prover too weak. 5040 trivial. 0 not checked. [2020-10-14 22:11:03,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835193337] [2020-10-14 22:11:03,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:03,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:03,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319710298] [2020-10-14 22:11:03,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:03,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:03,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:03,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:03,214 INFO L87 Difference]: Start difference. First operand 17080 states and 17958 transitions. Second operand 7 states. [2020-10-14 22:11:06,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:06,515 INFO L93 Difference]: Finished difference Result 34162 states and 35918 transitions. [2020-10-14 22:11:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:11:06,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1955 [2020-10-14 22:11:06,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:06,559 INFO L225 Difference]: With dead ends: 34162 [2020-10-14 22:11:06,560 INFO L226 Difference]: Without dead ends: 17425 [2020-10-14 22:11:06,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:11:06,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17425 states. [2020-10-14 22:11:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17425 to 17080. [2020-10-14 22:11:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17080 states. [2020-10-14 22:11:06,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17080 states to 17080 states and 17954 transitions. [2020-10-14 22:11:06,812 INFO L78 Accepts]: Start accepts. Automaton has 17080 states and 17954 transitions. Word has length 1955 [2020-10-14 22:11:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:06,822 INFO L479 AbstractCegarLoop]: Abstraction has 17080 states and 17954 transitions. [2020-10-14 22:11:06,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 17080 states and 17954 transitions. [2020-10-14 22:11:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2030 [2020-10-14 22:11:06,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:06,864 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:06,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:11:06,865 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:06,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:06,865 INFO L82 PathProgramCache]: Analyzing trace with hash -616119533, now seen corresponding path program 1 times [2020-10-14 22:11:06,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:06,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674538043] [2020-10-14 22:11:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:07,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:08,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2059 [2020-10-14 22:11:12,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:12,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5191 [2020-10-14 22:11:12,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:12,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-14 22:11:12,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:11:12,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:12,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:12,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:12,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:12,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:12,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:12,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:12,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:12,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:11:12,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:12,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:12,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:11:12,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 22:11:12,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:12,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:11:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:12,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:12,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:11:12,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:12,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:12,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:11:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:12,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:11:12,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:11:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 22:11:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:12,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:11:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-14 22:11:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:11:13,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:11:13,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 22:11:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:13,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-14 22:11:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:11:13,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:11:13,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:11:13,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1254 [2020-10-14 22:11:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:13,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:11:13,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:11:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1527 [2020-10-14 22:11:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1639 [2020-10-14 22:11:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:11:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1854 [2020-10-14 22:11:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:11:13,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:11:13,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:11:13,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7792 backedges. 1056 proven. 1046 refuted. 0 times theorem prover too weak. 5690 trivial. 0 not checked. [2020-10-14 22:11:16,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674538043] [2020-10-14 22:11:16,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:16,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:16,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594010535] [2020-10-14 22:11:16,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:16,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:16,547 INFO L87 Difference]: Start difference. First operand 17080 states and 17954 transitions. Second operand 7 states. [2020-10-14 22:11:20,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:20,040 INFO L93 Difference]: Finished difference Result 34497 states and 36274 transitions. [2020-10-14 22:11:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:20,041 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2029 [2020-10-14 22:11:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:20,081 INFO L225 Difference]: With dead ends: 34497 [2020-10-14 22:11:20,082 INFO L226 Difference]: Without dead ends: 17760 [2020-10-14 22:11:20,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:11:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17760 states. [2020-10-14 22:11:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17760 to 17754. [2020-10-14 22:11:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17754 states. [2020-10-14 22:11:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17754 states to 17754 states and 18622 transitions. [2020-10-14 22:11:20,350 INFO L78 Accepts]: Start accepts. Automaton has 17754 states and 18622 transitions. Word has length 2029 [2020-10-14 22:11:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:20,351 INFO L479 AbstractCegarLoop]: Abstraction has 17754 states and 18622 transitions. [2020-10-14 22:11:20,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:20,352 INFO L276 IsEmpty]: Start isEmpty. Operand 17754 states and 18622 transitions. [2020-10-14 22:11:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2033 [2020-10-14 22:11:20,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:20,409 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:20,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:11:20,410 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:20,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:20,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1868834572, now seen corresponding path program 1 times [2020-10-14 22:11:20,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:20,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525892572] [2020-10-14 22:11:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:20,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:20,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:21,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:25,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2062 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5133 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 679 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:11:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:25,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:25,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:25,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:25,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:25,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:25,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:25,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:25,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:25,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:25,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:25,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:25,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:25,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:25,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:25,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:11:26,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:11:26,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:11:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:26,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:11:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:11:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:11:26,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:11:26,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:11:26,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 22:11:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:26,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 22:11:26,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:26,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:26,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:11:26,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-14 22:11:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:11:26,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:11:26,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 22:11:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1183 [2020-10-14 22:11:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1257 [2020-10-14 22:11:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:11:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:26,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:26,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1530 [2020-10-14 22:11:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:26,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:26,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:11:26,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:26,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:11:26,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:26,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:11:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:27,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1642 [2020-10-14 22:11:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:27,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:27,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:27,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:11:27,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:27,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:11:27,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:27,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:27,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:11:27,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:27,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:27,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1857 [2020-10-14 22:11:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:27,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:11:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:29,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7810 backedges. 1059 proven. 1046 refuted. 0 times theorem prover too weak. 5705 trivial. 0 not checked. [2020-10-14 22:11:29,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525892572] [2020-10-14 22:11:29,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:29,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:29,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311743076] [2020-10-14 22:11:29,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:29,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:29,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:29,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:29,623 INFO L87 Difference]: Start difference. First operand 17754 states and 18622 transitions. Second operand 7 states. [2020-10-14 22:11:32,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:32,961 INFO L93 Difference]: Finished difference Result 35506 states and 37260 transitions. [2020-10-14 22:11:32,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:11:32,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2032 [2020-10-14 22:11:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:32,997 INFO L225 Difference]: With dead ends: 35506 [2020-10-14 22:11:32,998 INFO L226 Difference]: Without dead ends: 18095 [2020-10-14 22:11:33,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:11:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18095 states. [2020-10-14 22:11:33,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18095 to 18093. [2020-10-14 22:11:33,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18093 states. [2020-10-14 22:11:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18093 states to 18093 states and 18958 transitions. [2020-10-14 22:11:33,240 INFO L78 Accepts]: Start accepts. Automaton has 18093 states and 18958 transitions. Word has length 2032 [2020-10-14 22:11:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:33,241 INFO L479 AbstractCegarLoop]: Abstraction has 18093 states and 18958 transitions. [2020-10-14 22:11:33,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 18093 states and 18958 transitions. [2020-10-14 22:11:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2051 [2020-10-14 22:11:33,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:33,285 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:33,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:11:33,286 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2025276574, now seen corresponding path program 1 times [2020-10-14 22:11:33,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:33,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914500956] [2020-10-14 22:11:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:33,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:34,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:37,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:38,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:38,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2080 [2020-10-14 22:11:38,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:38,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:11:38,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:38,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 961 [2020-10-14 22:11:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:11:38,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:38,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:38,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:38,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:38,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:38,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:38,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:38,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:38,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:38,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:38,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:38,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:38,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:38,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:11:38,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:38,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:38,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:38,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:38,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:38,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:11:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:38,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:38,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:38,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:38,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:38,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:11:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:39,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:39,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 22:11:39,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:11:39,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:39,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:39,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2020-10-14 22:11:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:39,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:39,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:11:39,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2020-10-14 22:11:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:11:39,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-14 22:11:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:39,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:39,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:39,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:11:39,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:11:39,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:39,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:11:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:39,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1275 [2020-10-14 22:11:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:11:39,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:39,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:39,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1548 [2020-10-14 22:11:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:11:40,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:11:40,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:11:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1660 [2020-10-14 22:11:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:11:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1875 [2020-10-14 22:11:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:11:40,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:11:40,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:11:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 8254 backedges. 1345 proven. 787 refuted. 0 times theorem prover too weak. 6122 trivial. 0 not checked. [2020-10-14 22:11:42,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914500956] [2020-10-14 22:11:42,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:42,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:42,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437489407] [2020-10-14 22:11:42,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:42,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:42,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:42,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:42,892 INFO L87 Difference]: Start difference. First operand 18093 states and 18958 transitions. Second operand 7 states. [2020-10-14 22:11:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:46,417 INFO L93 Difference]: Finished difference Result 36868 states and 38636 transitions. [2020-10-14 22:11:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:46,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2050 [2020-10-14 22:11:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:46,453 INFO L225 Difference]: With dead ends: 36868 [2020-10-14 22:11:46,453 INFO L226 Difference]: Without dead ends: 19118 [2020-10-14 22:11:46,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:11:46,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19118 states. [2020-10-14 22:11:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19118 to 19110. [2020-10-14 22:11:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19110 states. [2020-10-14 22:11:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19110 states to 19110 states and 20013 transitions. [2020-10-14 22:11:46,696 INFO L78 Accepts]: Start accepts. Automaton has 19110 states and 20013 transitions. Word has length 2050 [2020-10-14 22:11:46,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:46,697 INFO L479 AbstractCegarLoop]: Abstraction has 19110 states and 20013 transitions. [2020-10-14 22:11:46,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:46,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19110 states and 20013 transitions. [2020-10-14 22:11:46,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2095 [2020-10-14 22:11:46,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:46,743 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:46,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:11:46,743 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:46,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:46,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1273901912, now seen corresponding path program 1 times [2020-10-14 22:11:46,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:46,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785595426] [2020-10-14 22:11:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:47,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:47,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:51,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2124 [2020-10-14 22:11:52,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:52,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-14 22:11:52,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1005 [2020-10-14 22:11:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:11:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:52,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:52,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:52,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:11:52,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:11:52,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:52,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:11:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:52,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:11:52,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:11:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:11:52,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:11:52,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:11:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:52,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:52,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:11:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:52,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-14 22:11:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:53,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:53,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:11:53,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:53,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 22:11:53,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:53,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:53,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:53,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:53,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:11:53,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1245 [2020-10-14 22:11:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:53,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:53,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:53,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:11:53,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:53,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:53,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1319 [2020-10-14 22:11:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:53,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:53,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:11:53,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1592 [2020-10-14 22:11:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:53,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:53,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:53,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:11:53,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:11:53,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:53,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:11:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:53,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:53,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1704 [2020-10-14 22:11:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:53,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:11:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:11:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:11:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1919 [2020-10-14 22:11:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:53,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:53,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:53,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:11:53,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:11:53,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:53,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:11:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:53,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8349 backedges. 1377 proven. 787 refuted. 0 times theorem prover too weak. 6185 trivial. 0 not checked. [2020-10-14 22:11:55,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785595426] [2020-10-14 22:11:55,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:55,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:55,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364883290] [2020-10-14 22:11:55,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:55,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:55,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:55,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:55,917 INFO L87 Difference]: Start difference. First operand 19110 states and 20013 transitions. Second operand 7 states. [2020-10-14 22:11:59,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:59,321 INFO L93 Difference]: Finished difference Result 39574 states and 41488 transitions. [2020-10-14 22:11:59,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:11:59,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2094 [2020-10-14 22:11:59,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:59,353 INFO L225 Difference]: With dead ends: 39574 [2020-10-14 22:11:59,353 INFO L226 Difference]: Without dead ends: 20807 [2020-10-14 22:11:59,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:11:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20807 states. [2020-10-14 22:11:59,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20807 to 20458. [2020-10-14 22:11:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20458 states. [2020-10-14 22:11:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20458 states to 20458 states and 21299 transitions. [2020-10-14 22:11:59,707 INFO L78 Accepts]: Start accepts. Automaton has 20458 states and 21299 transitions. Word has length 2094 [2020-10-14 22:11:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:59,709 INFO L479 AbstractCegarLoop]: Abstraction has 20458 states and 21299 transitions. [2020-10-14 22:11:59,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 20458 states and 21299 transitions. [2020-10-14 22:11:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2191 [2020-10-14 22:11:59,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:59,764 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:59,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:11:59,764 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:59,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1941485275, now seen corresponding path program 1 times [2020-10-14 22:11:59,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:59,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495378861] [2020-10-14 22:11:59,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:05,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:05,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2222 [2020-10-14 22:12:05,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:12:05,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:05,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:05,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:05,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:12:05,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:12:05,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:05,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:05,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:05,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:05,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:05,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:05,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:12:05,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:05,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:12:05,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:05,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:05,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:05,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:12:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:05,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:05,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:12:05,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 22:12:05,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:05,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:12:05,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:12:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:05,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:05,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:12:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-14 22:12:05,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:05,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:12:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 661 [2020-10-14 22:12:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2020-10-14 22:12:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:12:06,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:12:06,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:12:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1020 [2020-10-14 22:12:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:12:06,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1270 [2020-10-14 22:12:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:12:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344 [2020-10-14 22:12:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:06,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:12:06,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:12:06,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1617 [2020-10-14 22:12:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:12:06,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1729 [2020-10-14 22:12:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:06,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:12:06,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:12:06,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:06,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:12:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1800 [2020-10-14 22:12:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:07,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:07,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:07,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2015 [2020-10-14 22:12:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:07,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:07,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:07,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:12:07,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:07,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0